Publications and resources

A best practice guide on the management of trees around transmission lines.

Flying near power lines is dangerous as the conductors (wires) can be difficult to see.

Our 2015/16 Annual Report is a print-friendly PDF file that includes our corporate governance and financial statements, disclosures and independent auditor's report.<...

Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...

Our 2019/20 Annual Report is a print-friendly PDF file that includes our corporate governance and financial statements,...

In our role as system operator, Transpower has commissioned an external report to investigate the potential value of DER in a New Zealand context. This report broadly considers the value of...

Transpower New Zealand today released its annual results for the 2019/20 financial year. 

Transpower today released its financial statements for the year ended 30 June.

Transpower's Greenhouse Gas Emissions Inventory Report 2018-19.